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Effect of Sm3+ on dielectric and magnetic properties of Y3Fe5O12 nanoparticles

  • K. Sadhana
  • S. R. Murthy
  • K. PraveenaEmail author
Article

Abstract

The Sm3+ doped Y3−xSmxFe5O12 (x = 0–3) nanopowders were prepared using modified sol–gel route. The crystalline structure and morphology was confirmed by X-ray diffraction and atomic force microscopy. The nanopowders were sintered at 950 °C/90 min using microwave sintering method. The lattice parameters and density of the samples were increased with an increase of Sm3+ concentration. The room temperature dielectric (ε′ and ε″) and magnetic (μ′ and μ″) properties were measured in the frequency range up to 20 GHz. The room temperature magnetization studies were carried out using Vibrating sample magnetometer using filed of 1.5 T. Results of VSM show that the saturation and remnant magnetization of Y3−xSmxFe5O12 (0–3) decreases on increasing the Sm concentration (x). The low values of magnetic (μ′ and μ″) properties makes them a good candidates for microwave devices, which can be operated in the high frequency range.

Keywords

Saturation Magnetization Samarium Yttrium Iron Garnet YFeO3 Squareness Ratio 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

Dr. K. Praveena is thankful to University Grants commission, New Delhi for awarding Dr. D.S. Kothari Post-Doctoral Fellowship.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Department of PhysicsUniversity College of Science, Osmania UniversitySaifabad, HyderabadIndia
  2. 2.Department of PhysicsUniversity College of Science, Osmania UniversityHyderabadIndia
  3. 3.Materials Research CentreIndian Institute of ScienceBangaloreIndia

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